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The LS swap has become a popular choice for car enthusiasts looking to boost performance in their vehicles. One of the most iconic platforms for this modification is the Nissan 240SX. With a lightweight chassis and a rear-wheel-drive layout, the 240SX is an ideal candidate for an LS engine swap. In this article, we will explore how to achieve 550 horsepower using Comp Cams and MOSFET ignition systems.
Understanding the LS Engine
The LS engine family, developed by General Motors, is renowned for its lightweight design and robust performance. These engines are known for their high power output and tuning potential, making them a favorite among performance enthusiasts.
- Lightweight aluminum construction
- High-revving capabilities
- Strong aftermarket support
Choosing the Right Components
For a successful LS swap in a 240SX, selecting the right components is crucial. This includes the engine, transmission, and supporting modifications. Below are the key components needed for achieving 550 hp.
Engine Selection
Most enthusiasts opt for the LS1 or LS3 engines due to their availability and performance. The LS3, in particular, offers a higher base horsepower, making it a great starting point for modifications.
Comp Cams
Comp Cams is a well-known brand in the performance camshaft market. Upgrading to a high-performance camshaft can significantly improve horsepower and torque. A camshaft designed for high RPMs will help achieve the desired power output.
- Choose a camshaft with a higher lift and duration
- Consider the lobe separation angle for better performance
MOSFET Ignition System
A MOSFET ignition system provides improved spark energy and efficiency compared to traditional systems. This is particularly beneficial for high-performance applications where consistent ignition is critical.
- Increased spark duration for better combustion
- Lower resistance leads to improved efficiency
Supporting Modifications
To reach 550 hp, additional modifications are necessary beyond the engine swap. These enhancements optimize performance and ensure reliability.
Fuel System Upgrades
Upgrading the fuel system is essential for supporting higher horsepower levels. This includes installing larger fuel injectors and a high-flow fuel pump to ensure adequate fuel delivery.
- Consider 60 lb/hr fuel injectors
- Upgrade to a Walbro 450 fuel pump
Exhaust System
An efficient exhaust system is vital for maximizing power. Upgrading to headers and a high-flow cat-back exhaust will reduce back pressure and improve exhaust flow.
- Long tube headers for increased flow
- 3-inch cat-back exhaust system
Tuning for Performance
After installing the LS engine and supporting modifications, proper tuning is essential to achieve the desired horsepower. A professional tuner can adjust the engine parameters to optimize performance.
- Use a standalone engine management system for flexibility
- Adjust fuel maps and ignition timing for maximum performance
Final Thoughts
Building an LS-swapped 240SX with Comp Cams and a MOSFET ignition system is an exciting project that can yield impressive results. With careful planning and the right components, achieving 550 horsepower is within reach. Always remember to prioritize safety and reliability throughout your build.